CVE-2026-8508 — MEDIUM (6.5)

Vulnerability Description

An improper authentication vulnerability in the "social_login.cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an attacker on the WLAN to bypass captive portal authentication.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-287

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advis

FAQ

What is CVE-2026-8508?

CVE-2026-8508 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An improper authentication vulnerability in the "social_login.cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an attacker on the WLAN to bypass captive portal au...

How severe is CVE-2026-8508?

CVE-2026-8508 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-8508?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.